Musnad Abu Ya'la al-Mawsili 161:32

Sarij ibn Yunus narrated to us, Ubaydah narrated to us, Suhayl narrated to us, from his father, from Abu Hurayrah, who said: The Messenger of Allah (may Allah bless him and grant him peace) said: "The Hour will not be established until time draws near, and the year becomes like a month, and the month like a week, and the week like a day, and the day like the burning of a palm leaf," meaning the frond.